International Journal of Mathematics and Mathematical Sciences
Volume 2003 (2003), Issue 17, Pages 1101-1110
doi:10.1155/S0161171203108010
A min-max theorem and its applications to nonconservative systems
Li Weiguo1
and Li Hongjie2
1Department of Applied Mathematics, University of Petroleum, Shandong Province, Dongying 257061, China
2Department of Mathematics, Linyi Teacher's College, Shandong Province, Linyi 276005, China
Abstract
A nonvariational generation of a min-max principle by A. Lazer is made. And it is used to prove a new existence results for a nonconservative systems of ordinary differential equations with resonance.